An Unbiased Coin is Tossed Until The First Head :

An unbiased coin is tossed until the first head appears or until four tosses are completed, whichever happens earlier. Which of the following statements is/are correct?
1. The probability that no head is observed is 1/16
2. The probability that the experiment ends with three tosses is 1/8.
Select the correct answer using the code given below: